One of the first actions of our project involves sampling and genetic analysis on the Mediterranean trout populations currently present in the Volturno and Biferno. Last winter the first samples were taken with the electro-phishing technique: a narcosis is induced with calibrated electrical impulses and, after taking measurements and measurements, the specimen is released where it was taken. These are time-consuming, complex and delicate procedures, but our team of experts has conducted it with extreme accuracy and precision.